Glass-fastening device.



GEORGE G. WRIGHT, OF CLEVELAND, ()HIO.

GLASS-FASTENING DEVECE.

Specification of Letters Patent.

Patented May 7, 1907.

Application filed May 15,1903. Serial No. 157,290.

To all whom it may concern:

Be it known that I, GEORGE O. WRIGHT, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented a certain new and useful Improvement in Glass-Fastening Devices, of which the following is a full,

clear, and exact description, reference being passed through these holes, especially if there is unequal settling of the base pieces upon which the glass plates are supported.

The object of my invention is to provide means for suitably securing together the meeting edges of two glass plates, especially those which meet at an angle, without the drilling of holes or grooving of the meeting edges.

It is a further object of this invention to construct the clamping bolt in such a manner that it will occupy no more space than is occupied by the packing strip or felt strip, which is placed between the meeting edges of the glass plates, and in this way overcoming the necessity of boring one or both plates or otherwise providing means for the passage of the bolt.

The invention consists of an outside angle plate having an inwardly projecting thin flat bar whose inner end is enlarged and made cylindrical and screw threaded, combined with an opposed inside angle plate perforated for the passage of said threaded end, and a nut which screws onto said threaded end.

It also consists of said combination of parts, when the outside plate andsaid connecting bar are constructed substantially as shown, whereby they are capable of separation before but not after the parts are put to use to hold the glass plates.

In the drawing, Figure 1 is a plan view of my invention in use fastening together two glass plates; and F 1g. 2 1s a central vertical sectional view of the fastening device; and Fig. 3 is an outside view of the outside plate.

Referring to the parts by letters A represents a metal plate which is bent so that the two sides or arms a thereof lie at the desired angle to each other; and these arms may be of any suitable shape, although they will generally be designed with the purpose of pleasing the eye. C represents a thin flat bar, which is secured to this plate, and projects inward therefrom, bisecting the angle between the arms thereof. This bar is very thin, but is made wide enough to give it the necessary tension strength. The inner end 0 of the bar is of cylindrical form and is screw threaded. The inner fastening plate B has, preferably, a flat center I) and two arms I) b which are disposed in the same angular relation to each other as are the arms of the outer plate. The flat center portion of this plate is perforated, and the screw threaded end of the bar B passes through this perforation, so as to receive on its projecting end the fastening nut E. In the preferred construc tion this bar C is not permanently fastened to the plate A; but this plate has a vertical slot a cut through it at the meeting angle of the two sides, and the flat bar C is provided with a Tsl1aped head 0 of such length and .shape, substantially as shown, being convex on its outer side,that it can only be passed through said hole by first passing one end through and then swinging the other end about one edge of the slotas a fulcrum, as shown by dotted lines in Fig. 2,a kind of movement which the bar may not have with respect to the plate when the fastening device is in service.

In the making of these all-glass windows and show cases it is customary to leave a very small space between the meeting ends which is usually filled up either by felt, putty or cement, and this bar, which connects the two fastening plates, is of no greater thickness than the customary distance between these glass plates which is occupied by the filling strip.

In putting this device into service, the glass plates F and G, whose edges are beveled, are placed in substantially the relative position they are intended to occupy with the filling strip II between the meeting edges thereof, and the outside fastening plate A is bent so that its arms lie at the desired angle to each other; then the bar 0 ispassed between the meeting edges of the glass plates, and the head 0 thereon, is passed through the slot a in said outside plate A. The inside fastening plate is then slipped over the threaded end of this fastening bar 0, and the nut E screwed into the same. This draws the glass plates together a little and clamps and holds them securely against relative movement. Preferably there will be interposed between the glass plates and both of the fastening plates strips E of rubber or felt, B, so that the metal does notdirectly contact with the glass.

Having described my invention, I claim: 1. A clamp for glass plates consisting of an outside fastening plate, a thin flat bar passing through a suitable opening in said out- I side plate and having a head for engaging the same, said thin flat bar being adapted to extend between the meeting edges of the plates and being adapted to occupy no more space 2. The combination of an outside fastening plate, having a vertical slot and a thin flat fastening bar having a T-shaped head longer than the slot and adapted to be passed through the same,said bar having an enlarged cylindrical screw threaded inner end, an inside fastening plate having a perforation through which this threaded end passes, and a nut fitting said threaded end, substantially as described.

In testimony whereof, I hereunto affix my signature in the presence of two witnesses. GEORGE C. WRIGHT.

Witnesses:

E. B. GILoHRIs'r, E. L. THURSTON. 

